Global Patent Index - EP 3420615 A1

EP 3420615 A1 20190102 - PRECHAMBER SPARK PLUG

Title (en)

PRECHAMBER SPARK PLUG

Title (de)

VORKAMMERZÜNDKERZE

Title (fr)

BOUGIE D'ALLUMAGE À PRÉCHAMBRE

Publication

EP 3420615 A1 20190102 (DE)

Application

EP 17842286 A 20171218

Priority

  • DE 102017204241 A 20170314
  • DE 2017200135 W 20171218

Abstract (en)

[origin: WO2018166549A1] A prechamber spark plug comprising a housing (3), a ground electrode and a prechamber (5) which is defined by the housing (3) and a cap (15) and inside which a central electrode (6) is arranged, is characterized in that the ratio V/D of the prechamber volume V to the largest internal diameter D of the prechamber (5) ranges from 30 mm2 to 95 mm2.

IPC 8 full level

H01T 13/54 (2006.01)

CPC (source: EP US)

H01T 13/54 (2013.01 - EP US)

Citation (search report)

See references of WO 2018166549A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

WO 2018166549 A1 20180920; DE 102017204241 A1 20180920; EP 3420615 A1 20190102; EP 3420615 B1 20210113; US 11233380 B2 20220125; US 2021135433 A1 20210506

DOCDB simple family (application)

DE 2017200135 W 20171218; DE 102017204241 A 20170314; EP 17842286 A 20171218; US 201716491924 A 20171218